Open PPT2007, switch to ldquo, view , tab click ldquo, slide master , slide into the master page view, then on the left side of the window will show the slide master and page thumbnail.Click the thumbnail of the last format, in ldquo; the parent of the slide; click ldquo in the tab; insert the format ; in the end, create a new format.Click ldquo again; rename ; enter the format name for ldquo in the pop-up window; the sound effect library ; click ldquo; rename ; the button completes the naming.